Almost no one denies the advantages of axial-flux motors: at the same outer diameter and magnetic pull, torque can be considerably higher than a radial motor's, the axial size is shorter, and both power density and torque density look better. But the reality is that the mainstream of global electric drives is still the cylindrical radial motor, and this landscape has barely moved for decades. That the technically superior side has been slow to rise is itself worth asking about.
The reason lies not in technology but in inertia. The first inertia is "people". University textbooks, finite-element simulation tools and industry standards are almost all built around radial motors, and generation after generation of motor engineers have circled within cylindrical air gaps and slot-tooth layouts from the day they entered the field. They know radial slot-tooth design and cylindrical air-gap calculation inside out, but switching to the completely new logic of flat magnetic circuits and radial stator teeth means overturning years of mental inertia, with no small learning cost.
The second inertia is "money". Radial motors have long been highly automated in stamping, lamination, winding and hairpin forming, and the capital invested in the industrial chain runs into hundreds of billions of dollars, with production lines, moulds and quality-inspection systems already in place. Switching to axial flux means most of these assets become obsolete, requiring equipment to be re-developed and process standards to be re-established — the account simply does not add up.
So in the past only cost-insensitive scenarios such as racing and aerospace were willing to experiment. But a turning point is emerging: with SiC devices maturing, soft magnetic composites advancing, and landmark M&A by leading companies, axial flux is moving from a "laboratory option" to a "mass-production candidate".
又是一年月圆时至，秋风送桂香，阖家庆团圆。在浓浓的中秋氛围中，久巨始终坚守智造初心，企业每一份成长与收获，都离不开全体同事的勤恳付出与同心并肩。
时光缓缓流淌，岁月镌刻成长。为感谢全体伙伴一路并肩同行，传递公司人文关怀，久巨 7‑9 月员工集体生日会温情如约而至。
金秋送爽，月满中秋。为增进会员企业交流，凝聚行业发展合力，深圳市音响行业协会中秋会员联谊会于 9 月 18 日在会员单位深圳盛佳丽电子圆满举办。
The shipping area outside the workshop was a hive of activity. After multiple rounds of full-machine commissioning, simulated mass-production validation, and factory quality inspection, a Jiuju DC motor automatic assembly line completed all factory-out procedures, was loaded onto trucks on schedule, and is about to depart for the customer's production base, helping the customer's project advance production implementation on plan.
The effective magnetic force acts at the outer-diameter edge, so at the same speed the magnets endure far higher centrifugal stress than in a slender radial motor. Under high-speed conditions, how the magnets are firmly fixed to the rotor disc is a key point of structural design.
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Jiuju Automation provides high-precision automatic assembly lines for axial flux motors, covering processes such as stator winding, magnet assembly, rotor balancing, and final product testing. These lines are suitable for applications in drones, new energy vehicles, and industrial drives. The company holds over 256 patents and is ISO 9001 certified...
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Jiuju Automation provides high-precision automatic assembly lines for axial flux motors, covering processes such as stator winding, magnet assembly, rotor balancing, and final product testing. These lines are suitable for applications in drones, new energy vehicles, and industrial drives. The company holds over 256 patents and is ISO 9001 certified...
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A multi-pole architecture brings a high-frequency fundamental; at 10,000 rpm the fundamental frequency can reach several kHz. Traditional IGBTs suffer soaring switching losses and severe heating — it is the MHz-class switching capability of SiC MOSFETs that truly matches high-frequency multi-pole axial flux motors.
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